The National Weather Service on Tuesday extended its red flag warning for Southern California until Thursday evening.

Southern California will continue to face "dangerous fire weather conditions" including strong Santa Ana winds and extremely low humidity through later this week, forecasters said Tuesday.

Millions of California residents were placed under a red flag warning through Thursday amid threats of further fires with looming winds in the forecast, according to multiple reports.

A rare Particularly Dangerous Situation warning has been issued for Southern California as a powerful and potentially damaging Santa Ana wind event​ is expected.

The Santa Anas are expected to be most powerful Monday night into Tuesday. Fire services across the region say they are ready.

Forecasters in Southern California expect to issue a 'particularly dangerous situation' red flag warning for the coming week as the Santa Ana wind forecast worsens.

Los Angeles County officials urged the public on Monday to prepare as dangerous Santa Ana winds returned to Southern California, raising the risk of more explosive wildfires. The National Weather Service is forecasting another Particularly Dangerous Situation red flag warning and extreme fire weather between noon Monday and 2 p.